--- /dev/null
+/* packet-osc.c
+ * Routines for "Open Sound Control" packet dissection
+ * Copyright 2014 Hanspeter Portner <dev@open-music-kontrollers.ch>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * Specification 1.0 (http://opensoundcontrol.org/spec-1_0)
+ * - based on default argument types: i,f,s,b
+ * - including widely used extension types: T,F,N,I,h,d,t,S,c,r,m
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <epan/packet.h>
+#include <epan/conversation.h>
+
+/* Open Sound Control (OSC) argument types enumeration */
+typedef enum _OSC_Type {
+ OSC_INT32 = 'i',
+ OSC_FLOAT = 'f',
+ OSC_STRING = 's',
+ OSC_BLOB = 'b',
+
+ OSC_TRUE = 'T',
+ OSC_FALSE = 'F',
+ OSC_NIL = 'N',
+ OSC_BANG = 'I',
+
+ OSC_INT64 = 'h',
+ OSC_DOUBLE = 'd',
+ OSC_TIMETAG = 't',
+
+ OSC_SYMBOL = 'S',
+ OSC_CHAR = 'c',
+ OSC_RGBA = 'r',
+ OSC_MIDI = 'm'
+} OSC_Type;
+
+/* characters not allowed in OSC path string */
+static const char invalid_path_chars [] = {
+ ' ', '#', '*', ',', '?', '[', ']', '{', '}',
+ '\0'
+};
+
+/* allowed characters in OSC format string */
+static const char valid_format_chars [] = {
+ OSC_INT32, OSC_FLOAT, OSC_STRING, OSC_BLOB,
+ OSC_TRUE, OSC_FALSE, OSC_NIL, OSC_BANG,
+ OSC_INT64, OSC_DOUBLE, OSC_TIMETAG,
+ OSC_SYMBOL, OSC_CHAR, OSC_RGBA, OSC_MIDI,
+ '\0'
+};
+
+#define MIDI_STATUS_CONTROLLER 0xB0
+
+/* Standard MIDI Message Type */
+static const value_string MIDI_status [] = {
+ { 0x00, "Invalid Message" },
+ { 0x80, "Note Off" },
+ { 0x90, "Note On" },
+ { 0xA0, "Note Pressure" },
+ { MIDI_STATUS_CONTROLLER, "Controller" },
+ { 0xC0, "Program Change" },
+ { 0xD0, "Channel Pressure" },
+ { 0xE0, "Pitch Bender" },
+ { 0xF0, "System Exclusive Begin" },
+ { 0xF1, "MTC Quarter Frame" },
+ { 0xF2, "Song Position" },
+ { 0xF3, "Song Select" },
+ { 0xF6, "Tune Request" },
+ { 0xF8, "Clock" },
+ { 0xFA, "Start" },
+ { 0xFB, "Continue" },
+ { 0xFC, "Stop" },
+ { 0xFE, "Active Sensing" },
+ { 0xFF, "Reset" },
+
+ {0, NULL }
+};
+
+/* Standard MIDI Controller Numbers */
+static const value_string MIDI_control [] = {
+ { 0x00, "Bank Selection" },
+ { 0x01, "Modulation" },
+ { 0x02, "Breath" },
+ { 0x04, "Foot" },
+ { 0x05, "Portamento Time" },
+ { 0x06, "Data Entry" },
+ { 0x07, "Main Volume" },
+ { 0x08, "Balance" },
+ { 0x0A, "Panpot" },
+ { 0x0B, "Expression" },
+ { 0x0C, "Effect1" },
+ { 0x0D, "Effect2" },
+ { 0x10, "General Purpose 1" },
+ { 0x11, "General Purpose 2" },
+ { 0x12, "General Purpose 3" },
+ { 0x13, "General Purpose 4" },
+ { 0x20, "Bank Selection" },
+ { 0x21, "Modulation" },
+ { 0x22, "Breath" },
+ { 0x24, "Foot" },
+ { 0x25, "Portamento Time" },
+ { 0x26, "Data Entry" },
+ { 0x27, "Main Volume" },
+ { 0x28, "Balance" },
+ { 0x2A, "Panpot" },
+ { 0x2B, "Expression" },
+ { 0x2C, "Effect1" },
+ { 0x2D, "Effect2" },
+ { 0x30, "General Purpose 1" },
+ { 0x31, "General Purpose 2" },
+ { 0x32, "General Purpose 3" },
+ { 0x33, "General Purpose 4" },
+ { 0x40, "Sustain Pedal" },
+ { 0x41, "Portamento" },
+ { 0x42, "Sostenuto" },
+ { 0x43, "Soft Pedal" },
+ { 0x44, "Legato Foot Switch" },
+ { 0x45, "Hold2" },
+ { 0x46, "SC1 Sound Variation" },
+ { 0x47, "SC2 Timbre" },
+ { 0x48, "SC3 Release Time" },
+ { 0x49, "SC4 Attack Time" },
+ { 0x4A, "SC5 Brightness" },
+ { 0x4B, "SC6" },
+ { 0x4C, "SC7" },
+ { 0x4D, "SC8" },
+ { 0x4E, "SC9" },
+ { 0x4F, "SC10" },
+ { 0x50, "General Purpose 5" },
+ { 0x51, "General Purpose 6" },
+ { 0x52, "General Purpose 7" },
+ { 0x53, "General Purpose 8" },
+ { 0x54, "Portamento Control" },
+ { 0x5B, "E1 Reverb Depth" },
+ { 0x5C, "E2 Tremolo Depth" },
+ { 0x5D, "E3 Chorus Depth" },
+ { 0x5E, "E4 Detune Depth" },
+ { 0x5F, "E5 Phaser Depth" },
+ { 0x60, "Data Increment" },
+ { 0x61, "Data Decrement" },
+ { 0x62, "Non-registered Parameter Number" },
+ { 0x63, "Non-registered Parameter Number" },
+ { 0x64, "Registered Parameter Number" },
+ { 0x65, "Registered Parameter Number" },
+ { 0x78, "All Sounds Off" },
+ { 0x79, "Reset Controllers" },
+ { 0x7A, "Local Control Switch" },
+ { 0x7B, "All Notes Off" },
+ { 0x7C, "Omni Off" },
+ { 0x7D, "Omni On" },
+ { 0x7E, "Mono1" },
+ { 0x7F, "Mono2" },
+
+ { 0, NULL }
+};
+
+static const char *immediate_fmt = "%s";
+static const char *immediate_str = "Immediate";
+static const char *bundle_str = "#bundle";
+
+/* Initialize the protocol and registered fields */
+static dissector_handle_t osc_handle = NULL;
+
+static int proto_osc = -1;
+
+static int hf_osc_bundle_type = -1;
+static int hf_osc_message_type = -1;
+static int hf_osc_message_header_type = -1;
+static int hf_osc_message_blob_type = -1;
+static int hf_osc_message_midi_type = -1;
+static int hf_osc_message_rgba_type = -1;
+
+static int hf_osc_bundle_timetag_type = -1;
+static int hf_osc_bundle_element_size_type = -1;
+
+static int hf_osc_message_path_type = -1;
+static int hf_osc_message_format_type = -1;
+
+static int hf_osc_message_int32_type = -1;
+static int hf_osc_message_float_type = -1;
+static int hf_osc_message_string_type = -1;
+static int hf_osc_message_blob_size_type = -1;
+static int hf_osc_message_blob_data_type = -1;
+
+static int hf_osc_message_true_type = -1;
+static int hf_osc_message_false_type = -1;
+static int hf_osc_message_nil_type = -1;
+static int hf_osc_message_bang_type = -1;
+
+static int hf_osc_message_int64_type = -1;
+static int hf_osc_message_double_type = -1;
+static int hf_osc_message_timetag_type = -1;
+
+static int hf_osc_message_symbol_type = -1;
+static int hf_osc_message_char_type = -1;
+
+static int hf_osc_message_rgba_red_type = -1;
+static int hf_osc_message_rgba_green_type = -1;
+static int hf_osc_message_rgba_blue_type = -1;
+static int hf_osc_message_rgba_alpha_type = -1;
+
+static int hf_osc_message_midi_channel_type = -1;
+static int hf_osc_message_midi_status_type = -1;
+static int hf_osc_message_midi_data1_type = -1;
+static int hf_osc_message_midi_data2_type = -1;
+static int hf_osc_message_midi_controller_type = -1;
+static int hf_osc_message_midi_value_type = -1;
+
+/* Initialize the subtree pointers */
+static int ett_osc_packet = -1;
+static int ett_osc_bundle = -1;
+static int ett_osc_message = -1;
+static int ett_osc_message_header = -1;
+static int ett_osc_blob = -1;
+static int ett_osc_rgba = -1;
+static int ett_osc_midi = -1;
+
+/* check for valid path string */
+static int
+is_valid_path(const char *path)
+{
+ const char *ptr;
+ if(path[0] != '/')
+ return 0;
+ for(ptr=invalid_path_chars; *ptr!='\0'; ptr++)
+ if(strchr(path+1, *ptr) != NULL)
+ return 0;
+ return 1;
+}
+
+/* check for valid format string */
+static int
+is_valid_format(const char *format)
+{
+ const char *ptr;
+ if(format[0] != ',')
+ return 0;
+ for(ptr=format+1; *ptr!='\0'; ptr++)
+ if(strchr(valid_format_chars, *ptr) == NULL)
+ return 0;
+ return 1;
+}
+
+/* Dissect OSC message */
+static int
+dissect_osc_message(tvbuff_t *tvb, proto_item *ti, proto_tree *osc_tree, gint offset, gint len)
+{
+ proto_tree *message_tree = NULL;
+ proto_tree *header_tree = NULL;
+ gint slen;
+ gint rem;
+ gint end = offset + len;
+ const gchar *path = NULL;
+ gint path_len;
+ gint path_offset;
+ const gchar *format = NULL;
+ gint format_offset;
+ gint format_len;
+ const gchar *ptr = NULL;
+
+ /* peek/read path */
+ path_offset = offset;
+ path = tvb_get_const_stringz(tvb, path_offset, &path_len);
+ if( (rem = path_len%4) ) path_len += 4-rem;
+
+ if(!is_valid_path(path))
+ return -1;
+
+ /* peek/read fmt */
+ format_offset = path_offset + path_len;
+ format = tvb_get_const_stringz(tvb, format_offset, &format_len);
+ if( (rem = format_len%4) ) format_len += 4-rem;
+
+ if(!is_valid_format(format))
+ return -1;
+
+ /* create message */
+ ti = proto_tree_add_none_format(osc_tree, hf_osc_message_type, tvb, offset, len, "Message: %s %s", path, format);
+ message_tree = proto_item_add_subtree(ti, ett_osc_message);
+
+ /* append header */
+ ti = proto_tree_add_item(message_tree, hf_osc_message_header_type, tvb, offset, path_len+format_len, ENC_NA);
+ header_tree = proto_item_add_subtree(ti, ett_osc_message_header);
+
+ /* append path */
+ proto_tree_add_item(header_tree, hf_osc_message_path_type, tvb, path_offset, path_len, ENC_ASCII | ENC_NA);
+
+ /* append format */
+ proto_tree_add_item(header_tree, hf_osc_message_format_type, tvb, format_offset, format_len, ENC_ASCII | ENC_NA);
+
+ offset += path_len + format_len;
+
+ /* ::parse argument:: */
+ ptr = format + 1; /* skip ',' */
+ while( (*ptr != '\0') && (offset < end) )
+ {
+ switch(*ptr)
+ {
+ case OSC_INT32:
+ proto_tree_add_item(message_tree, hf_osc_message_int32_type, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+ break;
+ case OSC_FLOAT:
+ proto_tree_add_item(message_tree, hf_osc_message_float_type, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+ break;
+ case OSC_STRING:
+ slen = tvb_strsize(tvb, offset);
+ if( (rem = slen%4) ) slen += 4-rem;
+ proto_tree_add_item(message_tree, hf_osc_message_string_type, tvb, offset, slen, ENC_ASCII | ENC_NA);
+ offset += slen;
+ break;
+ case OSC_BLOB:
+ {
+ proto_item *bi = NULL;
+ proto_tree *blob_tree = NULL;
+
+ gint32 blen = tvb_get_ntohl(tvb, offset);
+ slen = blen;
+ if( (rem = slen%4) ) slen += 4-rem;
+
+ bi = proto_tree_add_none_format(message_tree, hf_osc_message_blob_type, tvb, offset, 4+slen, "Blob: %i bytes", blen);
+ blob_tree = proto_item_add_subtree(bi, ett_osc_blob);
+
+ proto_tree_add_int_format_value(blob_tree, hf_osc_message_blob_size_type, tvb, offset, 4, blen, "%i bytes", blen);
+ offset += 4;
+
+ /* check for zero length blob */
+ if(blen == 0)
+ break;
+
+ proto_tree_add_item(blob_tree, hf_osc_message_blob_data_type, tvb, offset, slen, ENC_NA);
+ offset += slen;
+ break;
+ }
+
+ case OSC_TRUE:
+ proto_tree_add_item(message_tree, hf_osc_message_true_type, tvb, offset, 0, ENC_NA);
+ break;
+ case OSC_FALSE:
+ proto_tree_add_item(message_tree, hf_osc_message_false_type, tvb, offset, 0, ENC_NA);
+ break;
+ case OSC_NIL:
+ proto_tree_add_item(message_tree, hf_osc_message_nil_type, tvb, offset, 0, ENC_NA);
+ break;
+ case OSC_BANG:
+ proto_tree_add_item(message_tree, hf_osc_message_bang_type, tvb, offset, 0, ENC_NA);
+ break;
+
+ case OSC_INT64:
+ proto_tree_add_item(message_tree, hf_osc_message_int64_type, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+ break;
+ case OSC_DOUBLE:
+ proto_tree_add_item(message_tree, hf_osc_message_double_type, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+ break;
+ case OSC_TIMETAG:
+ {
+ guint32 sec = tvb_get_ntohl(tvb, offset);
+ guint32 frac = tvb_get_ntohl(tvb, offset+4);
+ nstime_t ns;
+ if( (sec == 0UL) && (frac == 1UL) )
+ proto_tree_add_time_format_value(message_tree, hf_osc_message_timetag_type, tvb, offset, 8, &ns, immediate_fmt, immediate_str);
+ else
+ proto_tree_add_item(message_tree, hf_osc_message_timetag_type, tvb, offset, 8, ENC_TIME_NTP | ENC_BIG_ENDIAN);
+ offset += 8;
+ }
+ break;
+
+ case OSC_SYMBOL:
+ slen = tvb_strsize(tvb, offset);
+ if( (rem = slen%4) ) slen += 4-rem;
+ proto_tree_add_item(message_tree, hf_osc_message_symbol_type, tvb, offset, slen, ENC_ASCII | ENC_NA);
+ offset += slen;
+ break;
+ case OSC_CHAR:
+ offset += 3;
+ proto_tree_add_item(message_tree, hf_osc_message_char_type, tvb, offset, 1, ENC_ASCII | ENC_NA);
+ offset += 1;
+ break;
+ case OSC_RGBA:
+ {
+ proto_item *ri = NULL;
+ proto_tree *rgba_tree = NULL;
+
+ ri = proto_tree_add_item(message_tree, hf_osc_message_rgba_type, tvb, offset, 4, ENC_BIG_ENDIAN);
+ rgba_tree = proto_item_add_subtree(ri, ett_osc_rgba);
+
+ proto_tree_add_item(rgba_tree, hf_osc_message_rgba_red_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+ proto_tree_add_item(rgba_tree, hf_osc_message_rgba_green_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+ proto_tree_add_item(rgba_tree, hf_osc_message_rgba_blue_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+ proto_tree_add_item(rgba_tree, hf_osc_message_rgba_alpha_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+ break;
+ }
+ case OSC_MIDI:
+ {
+ const gchar *status_str = NULL;
+ const gchar *control_str = NULL;
+ proto_item *mi = NULL;
+ proto_tree *midi_tree = NULL;
+ guint8 channel;
+ guint8 status;
+ guint8 data1;
+ guint8 data2;
+
+ channel = tvb_get_guint8(tvb, offset);
+ status = tvb_get_guint8(tvb, offset+1);
+ data1 = tvb_get_guint8(tvb, offset+2);
+ data2 = tvb_get_guint8(tvb, offset+3);
+
+ status_str = val_to_str_const(status, MIDI_status, "Unknown");
+
+ if(status == MIDI_STATUS_CONTROLLER) /* MIDI Controller */
+ {
+ control_str = val_to_str_const(data1, MIDI_control, "Unknown");
+
+ mi = proto_tree_add_none_format(message_tree, hf_osc_message_midi_type, tvb, offset, 4,
+ "MIDI: Channel %2i, %s (0x%02x), %s (0x%02x), 0x%02x",
+ channel,
+ status_str, status,
+ control_str, data1,
+ data2);
+ }
+ else
+ mi = proto_tree_add_none_format(message_tree, hf_osc_message_midi_type, tvb, offset, 4,
+ "MIDI: Channel %2i, %s (0x%02x), 0x%02x, 0x%02x",
+ channel,
+ status_str, status,
+ data1, data2);
+ midi_tree = proto_item_add_subtree(mi, ett_osc_midi);
+
+ proto_tree_add_item(midi_tree, hf_osc_message_midi_channel_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ proto_tree_add_item(midi_tree, hf_osc_message_midi_status_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ if(status == MIDI_STATUS_CONTROLLER)
+ {
+ proto_tree_add_item(midi_tree, hf_osc_message_midi_controller_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ proto_tree_add_item(midi_tree, hf_osc_message_midi_value_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+ }
+ else
+ {
+ proto_tree_add_item(midi_tree, hf_osc_message_midi_data1_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ proto_tree_add_item(midi_tree, hf_osc_message_midi_data2_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+ }
+
+ break;
+ }
+
+ default:
+ /* if we get here, there must be a bug in the dissector */
+ DISSECTOR_ASSERT_NOT_REACHED();
+ break;
+ }
+ ptr++;
+ }
+
+ if(offset != end)
+ return -1;
+ else
+ return 0;
+}
+
+/* Dissect OSC bundle */
+static int
+dissect_osc_bundle(tvbuff_t *tvb, proto_item *ti, proto_tree *osc_tree, gint offset, gint len)
+{
+ const gchar *str;
+ proto_tree *bundle_tree = NULL;
+ gint end = offset + len;
+ guint32 sec;
+ guint32 frac;
+ nstime_t ns;
+
+ /* check for valid #bundle */
+ str = tvb_get_const_stringz(tvb, offset, NULL);
+ if(strncmp(str, bundle_str, 8)) /* no OSC bundle */
+ return -1;
+
+ /* create bundle */
+ ti = proto_tree_add_item(osc_tree, hf_osc_bundle_type, tvb, offset, len, ENC_NA);
+
+ bundle_tree = proto_item_add_subtree(ti, ett_osc_bundle);
+
+ offset += 8; /* skip bundle_str */
+
+ /* read timetag */
+ sec = tvb_get_ntohl(tvb, offset);
+ frac = tvb_get_ntohl(tvb, offset+4);
+ if( (sec == 0UL) && (frac == 1UL) )
+ proto_tree_add_time_format_value(bundle_tree, hf_osc_bundle_timetag_type, tvb, offset, 8, &ns, immediate_fmt, immediate_str);
+ else
+ proto_tree_add_item(bundle_tree, hf_osc_bundle_timetag_type, tvb, offset, 8, ENC_TIME_NTP | ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* ::read size, read block:: */
+ while(offset < end)
+ {
+ /* peek bundle element size */
+ gint32 size = tvb_get_ntohl(tvb, offset);
+
+ /* read bundle element size */
+ proto_tree_add_int_format_value(bundle_tree, hf_osc_bundle_element_size_type, tvb, offset, 4, size, "%i bytes", size);
+ offset += 4;
+
+ /* check for zero size bundle element */
+ if(size == 0)
+ continue;
+
+ /* peek first bundle element char */
+ switch(tvb_get_guint8(tvb, offset))
+ {
+ case '#': /* this is a bundle */
+ if(dissect_osc_bundle(tvb, ti, bundle_tree, offset, size))
+ return -1;
+ else
+ break;
+ case '/': /* this is a message */
+ if(dissect_osc_message(tvb, ti, bundle_tree, offset, size))
+ return -1;
+ else
+ break;
+ default:
+ return -1; /* neither message nor bundle */
+ }
+
+ /* check for integer overflow */
+ if(size > G_MAXINT - offset)
+ return -1;
+ else
+ offset += size;
+ }
+
+ if(offset != end)
+ return -1;
+ else
+ return 0;
+}
+
+/* Dissect OSC packet */
+static void
+dissect_osc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ gint offset = 0;
+
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "OSC");
+ /* clear out stuff in the info column */
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ if(tree) /* we are being asked for details */
+ {
+ gint len;
+ proto_item *ti = NULL;
+ proto_tree *osc_tree = NULL;
+
+ /* create OSC packet */
+ ti = proto_tree_add_item(tree, proto_osc, tvb, 0, -1, ENC_NA);
+ osc_tree = proto_item_add_subtree(ti, ett_osc_packet);
+ len = proto_item_get_len(ti);
+
+ /* peek first bundle element char */
+ switch(tvb_get_guint8(tvb, offset))
+ {
+ case '#': /* this is a bundle */
+ if(dissect_osc_bundle(tvb, ti, osc_tree, offset, len))
+ return;
+ else
+ break;
+ case '/': /* this is a message */
+ if(dissect_osc_message(tvb, ti, osc_tree, offset, len))
+ return;
+ else
+ break;
+ default: /* neither message nor bundle */
+ return;
+ }
+ }
+}
+
+/* OSC heuristics */
+static gboolean
+dissect_osc_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+ gint offset = 0;
+ gint slen;
+ gint rem;
+ const gchar *str = NULL;
+ conversation_t *conversation = NULL;
+
+ /* peek first string */
+ str = tvb_get_const_stringz(tvb, offset, &slen);
+ if(strncmp(str, bundle_str, 8) != 0) /* no OSC bundle */
+ {
+ /* check for valid path */
+ if(!is_valid_path(str))
+ return FALSE;
+
+ /* skip path */
+ if( (rem = slen%4) ) slen += 4-rem;
+ offset += slen;
+
+ /* peek next string */
+ str = tvb_get_const_stringz(tvb, offset, &slen);
+
+ /* check for valid format */
+ if(!is_valid_format(str))
+ return FALSE;
+ }
+
+ /* if we get here, then it's an Open Sound Control packet (bundle or message) */
+
+ /* specify that dissect_osc is to be called directly from now on for packets for this connection */
+ conversation = find_or_create_conversation(pinfo);
+ conversation_set_dissector(conversation, osc_handle);
+
+ /* do the dissection */
+ dissect_osc(tvb, pinfo, tree);
+
+ return TRUE; /* OSC heuristics was matched */
+}
+
+/* Register the protocol with Wireshark */
+void
+proto_register_osc(void)
+{
+ static hf_register_info hf[] = {
+ { &hf_osc_bundle_type, { "Bundle", "osc.bundle",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Bundle structure", HFILL } },
+ { &hf_osc_bundle_timetag_type, { "Timetag", "osc.bundle.timetag",
+ FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC,
+ NULL, 0x0,
+ "Scheduled bundle execution time", HFILL } },
+
+ { &hf_osc_bundle_element_size_type, { "Size", "osc.bundle.element.size",
+ FT_INT32, BASE_DEC,
+ NULL, 0x0,
+ "Bundle element size", HFILL } },
+
+ { &hf_osc_message_type, { "Message", "osc.message",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Message structure", HFILL } },
+ { &hf_osc_message_header_type, { "Header", "osc.message.header",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Message header", HFILL } },
+ { &hf_osc_message_path_type, { "Path", "osc.message.header.path",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "Message path", HFILL } },
+ { &hf_osc_message_format_type, { "Format", "osc.message.header.format",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "Message format", HFILL } },
+
+ { &hf_osc_message_int32_type, { "Int32", "osc.message.int32",
+ FT_INT32, BASE_DEC,
+ NULL, 0x0,
+ "32bit integer value", HFILL } },
+ { &hf_osc_message_float_type, { "Float", "osc.message.float",
+ FT_FLOAT, BASE_NONE,
+ NULL, 0x0,
+ "Floating point value", HFILL } },
+ { &hf_osc_message_string_type, { "String", "osc.message.string",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "String value", HFILL } },
+
+ { &hf_osc_message_blob_type, { "Blob", "osc.message.blob",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Binary blob value", HFILL } },
+ { &hf_osc_message_blob_size_type, { "Size", "osc.message.blob.size",
+ FT_INT32, BASE_DEC,
+ NULL, 0x0,
+ "Binary blob size", HFILL } },
+ { &hf_osc_message_blob_data_type, { "Data", "osc.message.blob.data",
+ FT_BYTES, BASE_NONE,
+ NULL, 0x0,
+ "Binary blob data", HFILL } },
+
+ { &hf_osc_message_true_type, { "True", "osc.message.true",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Boolean true value", HFILL } },
+ { &hf_osc_message_false_type, { "False", "osc.message.false",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Boolean false value", HFILL } },
+ { &hf_osc_message_nil_type, { "Nil", "osc.message.nil",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Nil value", HFILL } },
+ { &hf_osc_message_bang_type, { "Bang", "osc.message.bang",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "Infinity, Impulse or Bang value", HFILL } },
+
+ { &hf_osc_message_int64_type, { "Int64", "osc.message.int64",
+ FT_INT64, BASE_DEC,
+ NULL, 0x0,
+ "64bit integer value", HFILL } },
+ { &hf_osc_message_double_type, { "Double", "osc.message.double",
+ FT_DOUBLE, BASE_NONE,
+ NULL, 0x0,
+ "Double value", HFILL } },
+ { &hf_osc_message_timetag_type, { "Timetag", "osc.message.timetag",
+ FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC,
+ NULL, 0x0,
+ "NTP time value", HFILL } },
+
+ { &hf_osc_message_symbol_type, { "Symbol", "osc.message.symbol",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "Symbol value", HFILL } },
+ { &hf_osc_message_char_type, { "Char", "osc.message.char",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "Character value", HFILL } },
+
+ { &hf_osc_message_rgba_type, { "RGBA", "osc.message.rgba",
+ FT_UINT32, BASE_HEX,
+ NULL, 0x0,
+ "RGBA color value", HFILL } },
+ { &hf_osc_message_rgba_red_type, { "Red", "osc.message.rgba.red",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ "Red color component", HFILL } },
+ { &hf_osc_message_rgba_green_type, { "Green", "osc.message.rgba.green",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ "Green color component", HFILL } },
+ { &hf_osc_message_rgba_blue_type, { "Blue", "osc.message.rgba.blue",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ "Blue color component", HFILL } },
+ { &hf_osc_message_rgba_alpha_type, { "Alpha", "osc.message.rgba.alpha",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ "Alpha transparency component", HFILL } },
+
+ { &hf_osc_message_midi_type, { "MIDI", "osc.message.midi",
+ FT_NONE, BASE_NONE,
+ NULL, 0x0,
+ "MIDI value", HFILL } },
+ { &hf_osc_message_midi_channel_type, { "Channel", "osc.message.midi.channel",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ "MIDI channel", HFILL } },
+ { &hf_osc_message_midi_status_type, { "Status", "osc.message.midi.status",
+ FT_UINT8, BASE_HEX,
+ VALS(MIDI_status), 0x0,
+ "MIDI status message", HFILL } },
+ { &hf_osc_message_midi_data1_type, { "Data1", "osc.message.midi.data1",
+ FT_UINT8, BASE_HEX,
+ NULL, 0x0,
+ "MIDI data value 1", HFILL } },
+ { &hf_osc_message_midi_data2_type, { "Data2", "osc.message.midi.data2",
+ FT_UINT8, BASE_HEX,
+ NULL, 0x0,
+ "MIDI data value 2", HFILL } },
+ { &hf_osc_message_midi_controller_type, { "Controller", "osc.message.midi.controller",
+ FT_UINT8, BASE_HEX,
+ VALS(MIDI_control), 0x0,
+ "MIDI controller message", HFILL } },
+ { &hf_osc_message_midi_value_type, { "Value", "osc.message.midi.value",
+ FT_UINT8, BASE_HEX,
+ NULL, 0x0,
+ "MIDI controller value", HFILL } }
+ };
+
+ /* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_osc_packet,
+ &ett_osc_bundle,
+ &ett_osc_message,
+ &ett_osc_message_header,
+ &ett_osc_blob,
+ &ett_osc_rgba,
+ &ett_osc_midi
+ };
+
+ proto_osc = proto_register_protocol("Open Sound Control Protocol", "OSC", "osc");
+
+ proto_register_field_array(proto_osc, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+}
+
+void
+proto_reg_handoff_osc(void)
+{
+ osc_handle = create_dissector_handle(dissect_osc, proto_osc);
+
+ /* register as heuristic dissector for TCP and UDP connections */
+ heur_dissector_add("tcp", dissect_osc_heur, proto_osc);
+ heur_dissector_add("udp", dissect_osc_heur, proto_osc);
+}
+
+/*
+ * Editor modelines - http://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */
git.samba.org / jelmer / wireshark.git / commitdiff